The ST range of switch mode power supplies has been designed for use in building fire systems. Available in either 2A or 5A versions they are fully compliant with EN54-4:1997, A1:2003 & A2:2007 www.sensetek.nl

1. SenseTek BV
Abberdaan 162
1046 AB AMSTERDAM
The Netherlands
Tel: +31 (0)20 6131611
Fax: +31(0)20 6132212
Email: sales@senstek.nl
© 2013 Elmdene International Limited
Specifications subject to change without notice.
Product Overview
The ST range of switch mode power supplies has
been designed for use in building fire systems.
Available in either 2A or 5A versions they are fully
compliant with EN54-4:1997, A1:2003 & A2:2007.
The units include intelligent battery charging, mains
and battery monitoring with independent volt-free
outputs. They also feature deep discharge protection
for the batteries in the event of a prolonged mains
failure
The inclusion of LED status indicators provides quick
diagnostics to the user and/or engineer.
The standard unit will fit up to 2 x 12V 17Ah
batteries. A separate battery box is also available
on request to house 2 x 12V 38Ah if greater backup
times are required (5A version only).
Advantages of Switch Mode Technology
Elmdene products using switch mode technology
are typically 80-87% efficient. This can save your
customers money by reducing their power bills and
carbon footprint.
Switch mode technology also makes for more
reliable products in the field as they are less likely to
overheat and subsequent failure.
Features
• 27.6V dc output
• Cost effective switch mode technology
• Energy efficient
▪ More efficient in operation
▪ Saves power reducing power bills
▪ Longer life in the field
▪ Less prone to failure
• Intelligent battery charging and monitoring
• Deep discharge protection
• Remote fault signalling
• Full rated current to load plus additional current
for battery charging
• LED indication:
▪ Mains status
▪ Output fault
▪ Battery fault
▪ Charger fault
• Volt-free fault output - EPS:
▪ Mains fail
• Volt-free fault output - PSU fault:
▪ Battery fault
▪ Charger fault
▪ Loss of output
• Mains transient protection
• Screen printing available
• 3 Year warranty
Approvals
CE Mark
RoHS Compliant
VdS Certificate No. G209142
Technical Information
Mains input 93–264V ac
Output 27.6V dc
Maximum current 2A / 5A
Operating temperature -10°C to 40°C at
95% RH
Product Dimensions and Weight
L x W x D: 420 x 400 x 80mm
Weight approx 6kg
ST Power Supply Range
EN54 - Fire
ELM0027-2013-Issue 1
2405STE
Switch Mode
Technology
Fire